JOHN ABALLI - 16 Oct 2025 Form 4 Insider Report for EXAGEN INC. (XGN)

Role: President and CEO, Director
Signature: /s/ Jeffrey G. Black, as attorney-in-fact
Issuer symbol: XGN
Transactions as of: 16 Oct 2025
Transactions value $: -$375,598
Form type: 4
Filing time: 20 Oct 2025, 17:20:07 UTC
Previous filing: 04 Mar 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
ABALLI JOHN	President and CEO, Director	C/O EXAGEN INC., 1261 LIBERTY WAY, VISTA	/s/ Jeffrey G. Black, as attorney-in-fact	20 Oct 2025	0001843113

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	XGN	Common Stock	Sale	-$376K	-31.8K	-4.26%	$11.82	714K	16 Oct 2025	Direct	F1
holding	XGN	Common Stock						40.4K	16 Oct 2025	by Spouse

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The sale reported on this Form 4 represents shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units ("RSUs"). The sale is mandated by the Issuer's satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Content

The sale reported on this Form 4 represents shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units ("RSUs"). The sale is mandated by the Issuer's satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.